638216359168

素因数分解:

$2^8\times {\mathrm{811}}^1\times {\mathrm{3074023}}^1$

素因数の和:3074850

約数の個数: 36

約数和(自身を含む): 1275510926368

約数和(自身を除く): 637294567200

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 811, 1622, 3244, 6488, 12976, 25952, 51904, 103808, 207616, 3074023, 6148046, 12296092, 24592184, 49184368, 98368736, 196737472, 393474944, 786949888, 2493032653, 4986065306, 9972130612, 19944261224, 39888522448, 79777044896, 159554089792, 319108179584, 638216359168]

約数ペア:

[(1, 638216359168), (2, 319108179584), (4, 159554089792), (8, 79777044896), (16, 39888522448), (32, 19944261224), (64, 9972130612), (128, 4986065306), (256, 2493032653), (811, 786949888), (1622, 393474944), (3244, 196737472), (6488, 98368736), (12976, 49184368), (25952, 24592184), (51904, 12296092), (103808, 6148046), (207616, 3074023)]